File name: Pandora242s1_Trollhaugen_20260204_L2Fit_fwvt1c5d20241105p1-8.txt
File generation date: 20260205T001954.1Z
Data description: Level 2 spectral fitting results file
Data file version: fwvt1c5p1-8
Local principal investigator: Ann Mari Fjaeraa
Network principal investigator: Alexander Cede
Instrument type: Pandora
Instrument number: 242
Spectrometer number: 1
Processing software version used: BlickP v1.8.75
Instrument operation file used: Pandora242_OF_v4d20220919.txt
Instrument calibration file used: Pandora242s1_CF_v5d20241105.txt
Level 1 file used: Pandora242s1_Trollhaugen_20260204_L1_smca1c5d20241105p1-8.txt
Full location name: Trollhaugen Observatory
Short location name: Trollhaugen
Country of location: Antarctica
Location latitude [deg]: -72.0112
Location longitude [deg]: 2.5350
Location altitude [m]: 1553
Local noon date: 20260204
Notes on s-number (L1 configuration): Corrections NOT applied although requested by the s-number are blind pixel subtraction, dark map for dark correction (replaced by immediate dark method), latency correction, radiometric temperature correction, matrix method stray light correction (replaced by simple method)
Data caveats: based on session 3 for new fieldcal from end of 2024
First and last pixel inside fitting window: 1628 1778
Nominal wavelengths inside fitting window [nm]: 492.0838 492.2044 492.3249 492.4455 492.5660 492.6865 492.8070 492.9275 493.0480 493.1684 493.2888 493.4092 493.5296 493.6500 493.7704 493.8907 494.0110 494.1313 494.2516 494.3719 494.4922 494.6124 494.7326 494.8528 494.9730 495.0932 495.2133 495.3335 495.4536 495.5737 495.6938 495.8139 495.9339 496.0540 496.1740 496.2940 496.4140 496.5339 496.6539 496.7738 496.8937 497.0136 497.1335 497.2534 497.3732 497.4931 497.6129 497.7327 497.8525 497.9722 498.0920 498.2117 498.3314 498.4511 498.5708 498.6905 498.8101 498.9297 499.0494 499.1690 499.2885 499.4081 499.5276 499.6472 499.7667 499.8862 500.0056 500.1251 500.2445 500.3640 500.4834 500.6028 500.7221 500.8415 500.9608 501.0802 501.1995 501.3188 501.4380 501.5573 501.6765 501.7957 501.9149 502.0341 502.1533 502.2724 502.3916 502.5107 502.6298 502.7489 502.8679 502.9870 503.1060 503.2250 503.3440 503.4630 503.5820 503.7009 503.8199 503.9388 504.0577 504.1765 504.2954 504.4142 504.5331 504.6519 504.7707 504.8894 505.0082 505.1269 505.2457 505.3644 505.4831 505.6017 505.7204 505.8390 505.9576 506.0762 506.1948 506.3134 506.4319 506.5505 506.6690 506.7875 506.9060 507.0244 507.1429 507.2613 507.3797 507.4981 507.6165 507.7349 507.8532 507.9715 508.0898 508.2081 508.3264 508.4447 508.5629 508.6811 508.7993 508.9175 509.0357 509.1539 509.2720 509.3901 509.5082 509.6263 509.7444 509.8624 509.9805
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Column 1: Two letter code of measurement routine
Column 2: UT date and time for center-time of measurement, yyyymmddThhmmssZ (ISO 8601)
Column 3: Fractional days since 1-Jan-2000 midnight for center-time of measurement
Column 4: Routine count (1 for the first routine of the day, 2 for the second, etc.)
Column 5: Repetition count (1 for the first set in the routine, 2 for the second, etc.)
Column 6: Total duration of measurement set in seconds
Column 7: Data processing type index
Column 8: Solar zenith angle for center-time of measurement in degree
Column 9: Solar azimuth for center-time of measurement in degree, 0=north, increases clockwise
Column 10: Lunar zenith angle for center-time of measurement in degree
Column 11: Lunar azimuth for center-time of measurement in degree, 0=north, increases clockwise
Column 12: Pointing zenith angle in degree, absolute or relative (see next column), 999=tracker not used
Column 13: Zenith pointing mode: zenith angle is... 0=absolute, 1=relative to sun, 2=relative to moon
Column 14: Pointing azimuth in degree, increases clockwise, absolute (0=north) or relative (see next column), 999=tracker not used
Column 15: Azimuth pointing mode: like zenith angle mode but also fixed scattering angles relative to sun (3) or moon (4)
Column 16: Fitting result index: 0=no error or warning, 1, 2=warning, >2=error
Column 17: Number of function evaluations used, 0=linear fitting or fitting not successful or no fitting done
Column 18: rms of unweighted fitting residuals, -9=fitting not successful
Column 19: Normalized rms of fitting residuals weighted with independent uncertainty, -9=fitting not successful or no uncertainty used
Column 20: Expected rms based on independent uncertainty, -9=fitting not successful or no uncertainty given
Column 21: Expected normalized weighted rms based on independent uncertainty, -9=fitting not successful or no uncertainty given
Column 22: Water vapor slant column amount [moles per square meter], -9e99=fitting not successful
Column 23: Independent uncertainty of water vapor slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -5=no independent uncertainty input was given, -9=spectral fitting not successful
Column 24: Structured uncertainty of water vapor slant column amount [moles per square meter], -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful
Column 25: Common uncertainty of water vapor slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -6=no common uncertainty input was given, -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful
Column 26: rms-based uncertainty of water vapor slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no rms-based uncertainty could be retrieved, -9=spectral fitting not successful
Column 27: Water vapor effective temperature [K]
Column 28: Independent uncertainty of water vapor effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -5=no independent uncertainty input was given, -9=spectral fitting not successful
Column 29: Structured uncertainty of water vapor effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -9=spectral fitting not successful
Column 30: Common uncertainty of water vapor effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no common uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -6=no common uncertainty input was given, -9=spectral fitting not successful
Column 31: Effective water vapor fitting wavelength [nm], -9=fitting not successful
Column 32: Diffuse correction applied before fitting at effective fitting wavelength for water vapor [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction
Column 33: Nitrogen dioxide slant column amount [moles per square meter], -9e99=fitting not successful
Column 34: Independent uncertainty of nitrogen dioxide slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -5=no independent uncertainty input was given, -9=spectral fitting not successful
Column 35: Structured uncertainty of nitrogen dioxide slant column amount [moles per square meter], -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful
Column 36: Common uncertainty of nitrogen dioxide slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -6=no common uncertainty input was given, -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful
Column 37: rms-based uncertainty of nitrogen dioxide slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no rms-based uncertainty could be retrieved, -9=spectral fitting not successful
Column 38: Nitrogen dioxide effective temperature [K]
Column 39: Independent uncertainty of nitrogen dioxide effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -5=no independent uncertainty input was given, -9=spectral fitting not successful
Column 40: Structured uncertainty of nitrogen dioxide effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -9=spectral fitting not successful
Column 41: Common uncertainty of nitrogen dioxide effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no common uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -6=no common uncertainty input was given, -9=spectral fitting not successful
Column 42: Effective nitrogen dioxide fitting wavelength [nm], -9=fitting not successful
Column 43: Diffuse correction applied before fitting at effective fitting wavelength for nitrogen dioxide [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction
Column 44: Ozone slant column amount [moles per square meter], -9e99=fitting not successful
Column 45: Independent uncertainty of ozone slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -5=no independent uncertainty input was given, -9=spectral fitting not successful
Column 46: Structured uncertainty of ozone slant column amount [moles per square meter], -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful
Column 47: Common uncertainty of ozone slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -6=no common uncertainty input was given, -7=not given since method "MEAS" was chosen, -9=spectral fitting not successful
Column 48: rms-based uncertainty of ozone slant column amount [moles per square meter], -1=cross section is zero in this wavelength range, -3=spectral fitting was done, but no rms-based uncertainty could be retrieved, -9=spectral fitting not successful
Column 49: Ozone effective temperature [K]
Column 50: Independent uncertainty of ozone effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no independent uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -5=no independent uncertainty input was given, -9=spectral fitting not successful
Column 51: Structured uncertainty of ozone effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -9=spectral fitting not successful
Column 52: Common uncertainty of ozone effective temperature [K], -1=temperature fitting was requested, but cross section is zero in this wavelength range, -2=no temperature fitting was requested and output for effective temperature and structured uncertainty of it is based on f-code, -3=spectral fitting was done, but no common uncertainty could be retrieved, -4=temperature fitting was requested, but differential optical depth is too small to retrieve the temperature, -6=no common uncertainty input was given, -9=spectral fitting not successful
Column 53: Effective ozone fitting wavelength [nm], -9=fitting not successful
Column 54: Diffuse correction applied before fitting at effective fitting wavelength for ozone [%], 0=no diffuse correction applied or fitting not requested, >0=measured diffuse correction, <0=(negative value of) calculated diffuse correction
Column 55: Molecular scattering air mass factor used for molecular scattering subtraction before the fitting
Column 56: Estimated uncertainty of molecular scattering air mass factor, -9=molecular scattering was not subtracted before the fitting
Column 57: Lower limit used for wavelength scaling [nm]
Column 58: Upper limit used for wavelength scaling [nm]
Column 59: Order of smoothing polynomial
Column 60: Smoothing polynomial coefficient, order 0
Column 61: Independent uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 62: Structured uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 63: Common uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 64: rms-based uncertainty of smoothing polynomial coefficient, order 0, -9=fitting not successful
Column 65: Smoothing polynomial coefficient, order 1
Column 66: Independent uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 67: Structured uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 68: Common uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 69: rms-based uncertainty of smoothing polynomial coefficient, order 1, -9=fitting not successful
Column 70: Mean value of measured data inside fitting window [same units as measurements]
Column 71: Wavelength change polynomial coefficient, order 0
Column 72: Independent uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 73: Structured uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 74: Common uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 75: rms-based uncertainty of wavelength change polynomial coefficient, order 0, -9=fitting not successful
Column 76: L1 based wavelength change coefficient, order 0, -9=no L1 wavelength change determination
Column 77: L1 based wavelength change coefficient, order 1, -9=no L1 wavelength change determination
Column 78: L2Fit data quality flag: 0=assured high quality, 1=assured medium quality, 2=assured low quality, 10=not-assured high quality, 11=not-assured medium quality, 12=not-assured low quality
Column 79: Sum over 2^i using those i, for which the corresponding L2Fit data quality parameter exceeds the DQ1 limit, 0=L1 data quality above 0, 1=Spectral fitting was not successful, 2=Wavelength shift too large, 3=Normalized rms of fitting residuals weighted with independent uncertainty too large
Column 80: Sum over 2^i using those i, for which the corresponding L2Fit data quality parameter exceeds the DQ2 limit (same parameters as for DQ1)
Column 81: L1 data quality flag: 0=assured high quality, 1=assured medium quality, 2=assured low quality, 10=not-assured high quality, 11=not-assured medium quality, 12=not-assured low quality
Column 82: Sum over 2^i using those i, for which the corresponding L1 data quality parameter exceeds the DQ1 limit, 0=Saturated data, 1=Too few dark counts measurements, 2=No temperature given or effective temperature too different from the reference temperature, 3=Dark count too high, 4=Unsuccessful dark background fitting, 5=The dark count differs significantly from the dark map for too many pixels, 6=Absolute value of estimated average residual stray light level too high, 7=Although attempted, no wavelength change could be retrieved, 8=Absolute value of retrieved wavelength shift too large, 9=Retrieved wavelength shift differs too much from the shift predicted by the effective temperature
Column 83: Sum over 2^i using those i, for which the corresponding L1 data quality parameter exceeds the DQ2 limit (same parameters as for DQ1)
Column 84: Atmospheric variability [%], 999=no atmospheric variability was determined
Column 85: Wavelength effective temperature [°C], 999=no effective temperature given
Column 86: Estimated average residual stray light level [%] (only valid for stray light correction methods 2 and higher)
Column 87: Retrieved wavelength shift from L1 data [nm], -9=no wavelength change determination
Column 88: Retrieved total wavelength shift [nm], -9=no wavelength change fitting
Column 89: Number of bright count cycles
Column 90: Number of dark count cycles
Column 91: Effective position of filterwheel #1, 0=filterwheel not used, 1-9 are valid positions
Column 92: Effective position of filterwheel #2, 0=filterwheel not used, 1-9 are valid positions
Column 93: Sum over 2^i, 0=spectra were interpolated in time, 1=spectra are corrected for off-target signal
Column 94: Integration time [ms]
Column 95: Spectrometer control temperature [°C], 999=no temperature signal
Column 96: Auxiliary spectrometer temperature [°C], 999=no temperature signal
Column 97: Temperature in head sensor [°C], 999=no temperature signal
Column 98: Azimuth motor temperature [°C], 999=no temperature signal
Column 99: Azimuth driver temperature [°C], 999=no temperature signal
Column 100: Zenith motor temperature [°C], 999=no temperature signal
Column 101: Zenith driver temperature [°C], 999=no temperature signal
Column 102: Temperature at electronics board 1 [°C], 999=no temperature signal
Column 103: Temperature at electronics board 2 [°C], 999=no temperature signal
Column 104: Humidity in head sensor [%], -9=no humidity signal
Column 105: Pressure in head sensor [hPa], -9=no pressure signal
Columns 106-256: Unweighted slant column residuals for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting
Columns 257-407: Normalized slant column residuals weighted with independent instrumental uncertainty for each pixel inside the fitting window multiplied by 1e5, 9e5=pixel was not used for fitting, 0=no independent instrumental uncertainty was given
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SQ 20260204T182314.6Z 9531.766141 617 1 53.42 2 76.24 260.35 101.56 116.96 0.00 1 0.00 1 0 15 3.864e-03 3.845e-03 1.576e-03 1.573e-03 7.564844e+02 7.967308e+01 5.325200e+01 -6.000000e+00 1.926498e+02 255.97 -2.00 20.00 -2.00 505.27 0.00e+00 5.141480e-04 4.017924e-05 2.762329e-05 -6.000000e+00 1.010131e-04 255.97 -2.00 20.00 -2.00 500.55 0.00e+00 1.755696e-01 3.136206e-02 1.062813e-02 -6.000000e+00 7.793384e-02 235.45 -2.00 7.59 -2.00 502.12 0.00e+00 4.113 0.002 489.00 513.00 1 7.4915e+00 2.3813e-03 4.8937e-03 -6.0000e+00 5.9224e-03 3.8244e-03 6.1763e-04 3.3993e-04 -6.0000e+00 1.5412e-03 6.6711e-04 -1.8829e-04 1.4162e-04 1.1774e-05 -6.0000e+00 3.5497e-04 2.0551e-03 -2.8203e-05 11 8 0 10 0 0 99.31 19.05 1.58 0.00206 0.00075 14 2 1 2 0 3814.917 15.00 19.05 -4.62 30.10 47.60 27.60 48.40 23.25 24.25 5.5 1029.08 -191 -623 94 -161 139 44 289 753 381 47 285 -95 -264 -126 -144 -387 -61 140 0 14 491 404 108 897 87 451 91 220 -344 149 758 -372 101 208 -638 -576 -266 150 71 -202 -100 -241 116 -35 -84 212 205 -144 -44 -481 -379 -627 -195 85 -26 -464 -402 -69 -118 163 15 241 -316 -1 -106 9 2185 -117 -129 -466 175 31 -340 -217 -132 -440 -168 75 -32 -290 -100 165 -109 -144 -419 -345 -20 217 90 -23 -142 -29 -83 -311 77 -68 -298 -10 -5 496 112 53 -558 -470 -1278 -890 242 -358 625 569 -61 -192 37 78 195 721 335 784 16 186 404 65 557 470 -305 280 287 -97 65 421 -361 70 -251 125 -128 578 206 -333 -250 171 -400 589 364 -256 -470 21 -417 -490 281 271 61 -180 -602 94 -168 138 45 300 782 396 48 287 -95 -260 -129 -148 -378 -60 142 0 14 513 424 114 938 93 476 96 230 -350 145 726 -364 100 214 -683 -617 -281 156 73 -206 -103 -249 121 -37 -89 225 216 -150 -45 -482 -367 -595 -183 80 -25 -467 -414 -71 -122 168 16 249 -330 -1 -109 9 2135 -115 -127 -451 166 30 -330 -214 -131 -437 -163 71 -30 -274 -95 157 -105 -140 -414 -343 -20 215 89 -23 -143 -30 -82 -309 75 -69 -300 -10 -5 463 105 50 -544 -476 -1269 -879 233 -362 618 566 -59 -188 37 79 197 726 341 795 17 185 396 63 533 453 -298 272 279 -94 63 406 -350 70 -248 122 -124 562 206 -323 -245 169 -401 587 365 -260 -478 21 -416 -478 280 268 61